package py.com.alfa.escriba.web.rest.impl;

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.Response;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;

import java.util.List;

import py.com.alfa.escriba.config.HttpHeaderConfig;
import py.com.alfa.escriba.config.EscribaApplicationContextProvider;
import py.com.alfa.escriba.exception.ErrorCode;
import py.com.alfa.escriba.exception.ServiceException;
import py.com.alfa.escriba.web.interceptor.BeanNames;
import py.com.alfa.escriba.web.interceptor.InvocationContext;
import py.com.alfa.escriba.web.rest.secure.VariablesSecureRESTService;
import py.com.alfa.escriba.web.services.VariablesService;

import py.com.alfa.escriba.persistence.dto.VariablesDTO;

public class VariablesSecureRESTServiceImpl implements VariablesSecureRESTService{

  private ApplicationContext ctx;
  private VariablesService dao;
  private InvocationContext ic;
  private HttpHeaderConfig config;
  private Logger logger = LoggerFactory.getLogger(getClass());

  public VariablesSecureRESTServiceImpl() {
    this.ctx = EscribaApplicationContextProvider.getContext();
    this.dao = (VariablesService) ctx.getBean("variablesService");
    this.config = (HttpHeaderConfig) ctx.getBean(BeanNames.HTTP_HEADERS_BEAN);
  }

  @Override
  public List<VariablesDTO> listVariables(HttpServletRequest request) throws ServiceException { 
    try {
      ic = (InvocationContext) request.getAttribute(this.config.getContextAttributeName());
      List<VariablesDTO> result = dao.listVariables(ic);
      return result;
    }
    catch (ServiceException e){
      logger.error(e.getMessage(), e);
      throw e;
    }
    catch (Exception e){
      logger.error(e.getMessage(), e);
      throw new ServiceException(ErrorCode.INTERNAL_ERROR, "internal.dataAccessError");
    }
  }

  @Override
  public VariablesDTO showVariables(Long id, HttpServletRequest request) throws ServiceException { 
    try {
      ic = (InvocationContext) request.getAttribute(this.config.getContextAttributeName());
      VariablesDTO result = dao.getVariables(id, ic);
      return result;
    }
    catch (ServiceException e){
      logger.error(e.getMessage(), e);
      throw e;
    }
    catch (Exception e){
      logger.error(e.getMessage(), e);
      throw new ServiceException(ErrorCode.INTERNAL_ERROR, "internal.dataAccessError");
    }
  }

  @Override
  public VariablesDTO saveVariables(Long id, VariablesDTO dto, HttpServletRequest request) throws ServiceException {
    try {
      ic = (InvocationContext) request.getAttribute(this.config.getContextAttributeName());
      VariablesDTO result = dao.updateVariables(id, dto, ic);
      return result;
    }
    catch (ServiceException e){
      logger.error(e.getMessage(), e);
      throw e;
    }
    catch (Exception e){
      logger.error(e.getMessage(), e);
      throw new ServiceException(ErrorCode.INTERNAL_ERROR, "internal.dataAccessError");
    }
  }

  @Override
  public VariablesDTO createVariables(VariablesDTO dto, HttpServletRequest request) throws ServiceException {
    try {
      ic = (InvocationContext) request.getAttribute(this.config.getContextAttributeName());
      VariablesDTO result = dao.createVariables(dto, ic);
      return result;
    }
    catch (ServiceException e){
      logger.error(e.getMessage(), e);
      throw e;
    }
    catch (Exception e){
      logger.error(e.getMessage(), e);
      throw new ServiceException(ErrorCode.INTERNAL_ERROR, "internal.dataAccessError");
    }
  }

  @Override
  public Response deleteVariables(Long id, HttpServletRequest request) throws ServiceException {
    try {
      ic = (InvocationContext) request.getAttribute(this.config.getContextAttributeName());
      dao.deleteVariables(id, ic);
      return Response.ok().build();
    }
    catch (ServiceException e){
      logger.error(e.getMessage(), e);
      throw e;
    }
    catch (Exception e){
      logger.error(e.getMessage(), e);
      throw new ServiceException(ErrorCode.INTERNAL_ERROR, "internal.dataAccessError");
    }
  }

}